Bedrosian joins closer Huston Street as the second late-game option for the Halos whose season will end prematurely. Street underwent knee surgery Aug. 23, though he was far less effective this season than Bedrosian.

The 24-year-old Bedrosian landed on the disabled list Aug. 9 with finger tendinitis, leading to the discovery of a blood clot. Bedrosian had quietly established himself as a relief ace before then, logging a stunning 1.12 ERA, 11.39 K/9, 3.12 BB/9 and 49.5 percent-ground ball rate in 40 1/3 innings. His performance this year represents a massive turnaround for a right-hander who pitched to a 5.81 ERA with 5.3 BB/9 in 52 2/3 combined frames over the previous two campaigns. Part of Bedrosian’s dominance this season was thanks to an improved slider, as FanGraphs’ Jeff Sullivan detailed last month. If the 2010 first-rounder continues his excellence next year, he should set himself up as a long-term closer solution.